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Email Verification

Overview

Email verification confirms that an email address exists, can receive messages, and is controlled by the applicant. Basic methods use OTP links/codes and suppression of disposable or risky domains. Advanced checks are enriched with domain age, MX/SPF/DMARC status, breach exposure, and behavioral patterns (velocity, device/IP reuse).
In onboarding and authentication, verified email improves recovery flows, reduces fake signups, and adds a possession factor though it is weaker than phishing-resistant methods. Compliance programs log consent, minimize PII, and respect unsubscribe and localization rules. Email risk signals should feed fraud scores, trigger step-up authentication, and coordinate with phone and device intelligence. Done well, email verification reduces support load, false positives, and account takeover pathways..

FAQ

Is email verification enough for KYC?

No. It’s a low-assurance signal; pair with document/biometric checks and sanctions screening for regulated products.

Which checks matter most?

OTP success, domain configuration (SPF/DMARC), reputation, and breach history. Combine with device/IP risk for context.

How to treat disposable emails?

Allow limits for low-risk use, or step up with stronger proof. For high-risk flows, block or require alternatives.

What about privacy?

Store minimal metadata, honor opt-outs, and encrypt identifiers; avoid unnecessary email content in logs.